Kids Science Birthday Parties in St George & Sydney’s Inner South
Bring an unforgettable science birthday party to your home or venue in St George and Sydney’s Inner South — packed with explosive experiments, giant bubbles and hands-on STEM fun that keeps kids fully engaged from start to finish.
Science Birthday Parties Across St George & Sydney’s Inner South
Our science birthday parties are carefully adapted for different age groups — from high-energy 5–6 year olds, curious 7–9 year olds, to confident 10–12 year olds, with experiments scaled to suit attention, confidence, and curiosity levels.
The Crazy Scientist brings exciting hands-on science birthday parties to families across St George and Sydney’s Inner South including Arncliffe, Rockdale, Kogarah, Mascot, Wolli Creek and surrounding suburbs.
With over 30 years of teaching experience, The Crazy Scientist delivers unforgettable science parties filled with spectacular experiments, giant bubbles and interactive STEM challenges.
Every party is packed with laughter, learning and amazing scientific surprises.
These fully mobile science shows for kids include:
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Explosive Science Experiments: Liquid nitrogen fog geysers, fizzing reactions & chemical explosions kids love!
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Giant Bubble Science Party: Kids step inside bubbles while learning about surface tension and light.
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Dinosaur & Ice Age Fossils: Hands-on with real fossils for budding palaeontologists.
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Slime Science Workshop: Make gooey, glow-in-the-dark slime to take home!
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Mad Scientist Party Games: Hilarious challenges packed with STEM learning fun.
As a qualified educator, I know what sparks curiosity — and I’ve crafted each show to be age-appropriate, interactive and outrageously fun. We regularly run science birthday parties across St George and Sydney’s Inner South, including Arncliffe, Rockdale, Kogarah, Mascot, Wolli Creek, Hurstville and surrounding suburbs.
Our science birthday parties across St George and Sydney’s Inner South include spectacular experiments, giant bubbles, slime-making and real fossil discoveries.
Find out why families across St George and Sydney’s Inner South love The Crazy Scientist science birthday parties for kids aged 4–12.
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Giant Bubble Science Party: Kids (and parents!) step inside massive bubbles while learning about science and surface tension.
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Liquid Nitrogen Experiments: Fog geysers and freezing fun kids will never forget.
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Hands-On STEM Learning: Every party mixes exciting experiments with real science concepts.
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Slime & Snow Take Home: Keep the fun going after the party ends!
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Dinosaur & Ice Age Fossil Fun: Touch real fossils and imagine life in prehistoric times.
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Tailored for Ages 4–12: Activities designed for your child’s age and interests.
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Sydney’s Most Popular Science Party Ideas: Early STEM learning wrapped in fun and laughter.
We regularly run science birthday parties in Arncliffe, Rockdale, Kogarah, Mascot, Wolli Creek and surrounding Inner South suburbs.
Watch a Real St George Science Birthday Party in Action
These exciting science birthday parties are available across St George and Sydney’s Inner South including Arncliffe, Rockdale, Kogarah, Mascot, Wolli Creek and surrounding suburbs.
Fun-Filled
Fun-Filled Kids Science Birthday Parties in St George and Sydney’s Inner South
At our kids science birthday parties across St George and Sydney’s Inner South, children jump into a world of hands-on experiments, giant bubbles, slime-making and real fossil discoveries. Each Crazy Scientist show combines exciting science demonstrations with interactive STEM learning that keeps kids laughing, curious and fully engaged from start to finish.
We regularly run kids science birthday parties across the St George area, including Arncliffe, Rockdale, Kogarah, Mascot, Wolli Creek, Brighton-Le-Sands and surrounding suburbs.
A Crazy Scientist Party Favourite – The Chatterbox Tube
Exclusive to The Crazy Scientist — over 1,000 Sydney kids have already tried it this year.
Watch kids across St George and Sydney’s Inner South go wild with our Chatterbox Tube — a giant 2-metre science activity that teaches airflow, pressure and teamwork in the most hilarious way possible!
Exclusive to The Crazy Scientist science birthday parties, this favourite activity is included in every show and can even be added to party bags so the science fun continues long after the party ends.
Exciting New Additions to Our St George Science Birthday Parties
Exclusive to The Crazy Scientist — over 1,000 kids have tried it this year.
We’re bringing even more excitement to our kids science birthday parties across St George and Sydney’s Inner South! Kids can touch and explore real dinosaur fossils — including a T-Rex arm bone, a Triceratops horn and a Stegosaurus tail spike.
These exciting additions let kids hold fossils, compare sizes and imagine what life was like when dinosaurs ruled the Earth — turning every St George science birthday party into a prehistoric adventure.
“Parents love it because the kids stay entertained, learn real science, and leave with unforgettable memories.”
St George Kids’ Science Party Highlights – Bubbles, Fossils & Mad Scientist Fun
Real kids science birthday parties across St George and Sydney’s Inner South featuring giant bubbles, liquid nitrogen experiments, dinosaur fossils and unforgettable STEM fun.
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Exciting Science Party Add-Ons for St George Kids – Slime, Bubbles & More
Make your St George science birthday party unforgettable with spectacular STEM add-ons. From giant bubbles to edible slime and fog geysers, these extras bring even more fun, learning and “WOW” moments to your child’s birthday celebration.
🍭 Make Edible Slime – Kids create colourful, gooey slime that’s 100% safe to eat – a delicious science experiment!
🔬 Super Bubble Table – Step inside giant bubbles and explore the science of surface tension in a fun, interactive way.
🥔 Potato Cannon Fun – Boom! Fire a spud from our legendary Potato Cannon (yes, really).
❄️ Fog Geysers & LN Ice Cream – Spectacular fog shows and ice cream made instantly with Liquid Nitrogen – kids love it!
With these epic add-ons, your child’s birthday becomes a spectacular mix of science, fun and unforgettable memories. Want a longer party or extra “WOW” moments? These STEM extras keep the excitement (and learning) going.
Edible Slime
Kids’ Science Party Favourite
($50 + GST)
Cost Materials & Extra Time
Polymer chemistry meets birthday party FUN!
Polymer chemistry meets delicious fun! In this hands-on edible slime workshop, kids become mini chemists, mixing their own safe-to-eat slime using colourful, gooey, and tasty ingredients.
Liquid Nitrogen
Fog Geysers & Nitro Ice Cream
($110 + GST)
Cost Materials & Extra Time
Ice cream. Fog geysers. SCIENCE.
Turn your backyard into a frozen science lab! Liquid nitrogen sends fog geysers shooting up to 2 metres high, then ends in a dessert finale with nitro ice cream made on the spot.
This jaw-dropping demo mixes showbiz with real science — kids go wild for it.
Gigantic Bubbles
Science You Can See & Chase
($50 + GST)
Bubble Juice from Canada = Science party Bubbles that work!
Make shimmering, super-sized bubbles using top-tier Canadian bubble solution and special techniques. Kids learn about surface tension, light refraction, and aerodynamics — all while making art that floats.
Expect laughter, squeals, and a LOT of bubbles.
Super Bubbles
Giant Bubble Science Party
($50 + GST)
Cost Materials & Extra Time
Geometric bubbles using powerful surface tension
Create spectacular geometric bubbles with the power of surface tension in this interactive bubble science party favourite. Kids will discover the secrets behind bubble shapes, colours, and strength using our special bubble solution from Canada.
Coke Head - Explosion!
($60 + GST)
The birthday child becomes the volcano. Yes, really.
Turn the birthday child into the star of a Mentos and Coke explosion! Five bottles of soda blast sky-high in this unforgettable science party experiment that teaches pressure, gas expansion, and timing.
Raincoats are provided — but expect shrieks, laughter, and foam-powered excitement. This is one of our most requested STEM birthday activities, perfect for kids who love big, messy, and amazing science moments.
Vicious Volcanoes
Erupting Volcano Science Activity
($50 + GST)
Cost Materials & Extra Time
Exploding chemistry + dramatic visuals.
Experience earth science like never before with our erupting volcano experiment. Kids mix colourful chemical reactions to create their own mini volcanic eruptions, then explore a giant model showing how real volcanoes work.
Liquid Nitrogen Science Party Experiments for St George Kids
Our liquid nitrogen experiments are one of the most exciting highlights of our science birthday parties across St George and Sydney’s Inner South.
One of St George’s Most Exciting Science Party Shows
A Favourite Crazy Scientist Party Experiment
Optional Party Keepsake – Choose a Crazy Scientist Science Book
Some families love adding a Crazy Scientist science book as a keepsake from the party.
Before the party, parents can browse our illustrated book series below and, if they wish, select one book for their child.
The book is added to the booking in advance and presented to the birthday child at the end of the party, along with their experiment sheets.
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Completely optional
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Chosen before the party (no pressure on the day)
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Party price: $29 (optional)
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One book per party family
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Designed to be read for fun, with humour, characters, and visual storytelling that keeps kids engaged from page to page.
With these epic add-ons, your event becomes a spectacular mix of science, fun, and unforgettable memories. Want a longer party or extra “WOW” moments? These STEM extras keep the fun (and learning) going! A popular party keepsake for many North Shore birthday celebrations.
Wacky Science Facts
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Packed with short, punchy science facts and bold illustrations, this book is perfect for curious kids who love weird, surprising, and sometimes gross science.
Designed for dipping in and out, it’s ideal for kids who enjoy discovering something new on every page — from exploding experiments to bizarre animals and mind-blowing science facts.
Great for kids who love:
• Weird facts
• Quick reads
• Laughing while learning
Facts are woven together with humour, playful explanations, and familiar Crazy Scientist characters, turning each page into a mini science moment — not just something to memorise, but something to enjoy.
Science Experiments for Kids
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This fully illustrated experiment book is packed with fun, safe science activities that kids can try at home using everyday materials.
Each experiment is explained step by step, helping kids build confidence as they mix, test, and explore real science concepts on their own — just like a mini science lab at home.
Great for kids who love:
• Making and building
• Hands-on learning
• Trying experiments themselves
Guided by friendly characters and clear visuals, each experiment feels like part of a science adventure — not a worksheet.
One book may be selected per party booking.
350 Deadly & Wild Creature Facts
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This deluxe illustrated book explores some of the deadliest, strangest, and most fascinating creatures on Earth — from venomous snakes and sharks to poisonous frogs and extreme predators.
Packed with dramatic visuals and surprising facts, it’s designed to hook kids who love animals, danger, and discovering how the natural world really works — all presented in an age-appropriate, engaging way.
Great for kids who love:
• Dangerous animals
• Sharks, snakes, and creepy creatures
• Big facts and dramatic illustrations
Facts are presented through engaging visuals, humour, and story-style explanations that help kids understand why these creatures are dangerous — not just that they are.
Super Bubbles
Giant Bubble Science Party
($50 + GST)
Cost Materials & Extra Time
Geometric bubbles using powerful surface tension
Create spectacular geometric bubbles with the power of surface tension in this interactive bubble science party favourite. Kids will discover the secrets behind bubble shapes, colours, and strength using our special bubble solution from Canada.
Coke Head - Explosion!
($60 + GST)
The birthday child becomes the volcano. Yes, really.
Turn the birthday child into the star of a Mentos and Coke explosion! Five bottles of soda blast sky-high in this unforgettable science party experiment that teaches pressure, gas expansion, and timing.
Raincoats are provided — but expect shrieks, laughter, and foam-powered excitement. This is one of our most requested STEM birthday activities, perfect for kids who love big, messy, and amazing science moments.
Vicious Volcanoes
Erupting Volcano Science Activity
($50 + GST)
Cost Materials & Extra Time
Exploding chemistry + dramatic visuals.
Experience earth science like never before with our erupting volcano experiment. Kids mix colourful chemical reactions to create their own mini volcanic eruptions, then explore a giant model showing how real volcanoes work.
Science Birthday Parties Across St George & Sydney’s Inner South
The Crazy Scientist brings exciting science birthday parties to homes, parks and venues across St George and Sydney’s Inner South, including these popular suburbs:
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Arncliffe • Rockdale • Kogarah • Hurstville
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Bexley • Bexley North • Carlton • Allawah
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Banksia • Turrella • Wolli Creek • Bardwell Park
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Bardwell Valley • Monterey • Ramsgate • Dolls Point
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Sans Souci • Blakehurst • Oatley • Mortdale
St George & Inner South Science Birthday Party Locations
The Crazy Scientist regularly performs science birthday parties across St George and Sydney’s Inner South, including Arncliffe, Rockdale, Kogarah, Hurstville, Bexley, Wolli Creek and surrounding suburbs.
Hurstville Community Centre
A popular indoor venue ideal for kids science birthday parties, with plenty of space for experiments, bubbles and interactive STEM activities.
Kogarah School of Arts / Community Venues
A versatile community venue perfect for hosting exciting science birthday parties and hands-on science activities.
Popular St George Venues for Science Birthday Parties
The Crazy Scientist can bring a full mobile science birthday party to homes, parks and community venues across St George and Sydney’s Inner South.
Rockdale Community Centres
A great location for parties with an indoor space and outside to do the Coe Mentos and Chatterbox Challenge.
Bexley Community Centre
A versatile local venue perfect for hosting exciting science birthday parties with room for experiments and games.
Carss Bush Park
A beautiful park setting ideal for outdoor science birthday parties, combining hands-on experiments with space for kids to explore and play.
5-Star Reviews for Our Kids’ Science Parties in Sydney
See why families across Sydney love booking The Crazy Scientist® for birthdays, school events, and STEM shows.
Parents rave about our interactive science parties, liquid nitrogen shows, and hands-on STEM activities for kids. With 5.0 stars from over 67 Google Reviews, The Crazy Scientist® is Sydney’s top choice for unforgettable birthday parties and school events.
Real Parent Feedback – Straight from Sydney Science Parties
Hear what Sydney parents have to say about The Crazy Scientist birthday parties. These live recordings capture real reactions from families after our unforgettable science shows, experiments and party activities.
Choose Your Sydney Science
Birthday Party Package
Each one is packed with awesome science, fun gear, and hands-on WOW moments!
Looking for kids science birthday parties in Sydney? Choose from our fun, hands-on science party packages designed for ages 5–12.
Party Level 1
480$A high-energy, hands-on science experience packed with exciting experiments and unforgettable WOW moments.- 60-minute fully hosted science experience
- Giant Inside Bubble Experience
- Up to 20 children included
- Make-your-own Lava Lamps
- Take-home Instant Snow
- Explosive Mentos Geyser
- Smoke vortex rings
- Hands-on exploration tables
- Chatterbox Tube Challenge
- Most Popular
Party Level 2
660$Our most popular party — more kids, more interaction, and even more WOW moments. Best value for most parties- 60-minute hosted science experience
- Giant Inside Bubble Experience
- Up to 30 children included
- Make-your-own Lava Lamps
- Take-home Instant Snow
- Explosive Mentos Geyser
- Smoke vortex rings
- Hands-on exploration tables
- Chatterbox Tube Challenge
Party Level 3
760$Take the party to the next level with bigger reactions, louder experiments, and extra WOW moments.- Up to 40 children included
- Giant Inside Bubble Experience
- Make-your-own Lava Lamps
- Take-home Instant Snow
- 2 × Explosive Mentos Geysers
- Smoke vortex rings
- More exploration stations
- Chatterbox Tube Challenge
- Potato Cannon blast
Large Group Parties
920$Perfect for large parties and events — more kids, more equipment, and multiple scientists running the show.- 40–55 children
- Qualified teacher presenter
- 2 Crazy Scientists running the show
- Multiple exploration tables
- Make-your-own Lava Lamps
- Take-home Instant Snow
- Multiple Mentos Geysers
- Chatterbox Challenge
- Extra activity station
All prices include GST, equipment, setup and pack-down — no hidden costs.
Preparation
To make sure your party runs smoothly, please have the following ready:
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A parking spot close to the party location.
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A sheltered area for the Giant Bubble Device (garage, room, or verandah).
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I’ll arrive 60 minutes before the start time to set up (teacher-quality prep).
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2–3 tables for the Exploration Stations (I provide the table covers).
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No chairs needed — we keep the action moving!
Party Duration
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Standard party length: 60 minutes of high-energy, hands-on science fun!
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Add-on experiences can extend the party by around 10 minutes each (except LN, which takes longer).
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Add-on costs cover extra time, consumables, and special science materials.
Example: 3 add-on experiences (not including LN) = extra 30 minutes of fun for an additional $150 (+GST).
Travel
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I can travel to any location.
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Sydney Metro parties: travel is included in the price.
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Locations outside Sydney Metro may incur an extra travel fee (quoted when you enquire).
Inquiry & Booking Process
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Choose your package — Pick your party level and any exciting add-on experiences.
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Send your enquiry — Use the booking form to tell us your preferred date and time.
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Confirm & secure your spot — Once we lock in the details, a deposit will secure your booking.
(Full details are in your Info Pack and our Terms & Conditions below.)
Payment Options
You can pay for your party using any of the following:
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Electronic Funds Transfer
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Major Credit Cards
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PayPal
- Single payment
- Pay in 4 instalments (subject to PayPal conditions)
Terms & Conditions
Please read our T&C page for full details on cancellations, rebooking dates, and other important information.
Sydney Science Birthday Party Pricing & Packages
Tailored for Every Group Size
Tailor your science party experience to perfection based on the number of children attending, ensuring a personalised and unforgettable event for all.
Whether you have a small group of curious minds or a larger gathering of budding scientists, my experience as a qualified teacher enables me to handle any crowd size with ease. With smaller groups, children can enjoy more individualised attention, hands-on interaction, and in-depth exploration of scientific concepts.
For larger groups, my teacher expertise in managing and engaging with children ensures a seamless and engaging experience for everyone involved. No matter the size, every child will benefit from the guidance and knowledge of our teacher, making each science party a unique and enriching experience tailored to the specific needs and interests of the group.
With over 30 years of teaching experience, I design each science birthday party to engage children of different ages and group sizes. Whether your party has a small group of curious young scientists or a larger crowd of excited explorers, every show is carefully structured to keep children engaged, learning and having fun.
Booking Information
Book a St George Science Birthday Party
Booking a science birthday party in St George and Sydney’s Inner South is easy. Simply tell us a few details below and we’ll help you plan an unforgettable Crazy Scientist party at your home, local park or venue.
We regularly host kids science birthday parties across St George including Arncliffe, Rockdale, Kogarah, Hurstville, Bexley and surrounding suburbs.
Join our Secret Lab Club & unlock exclusive experiments, stories, teacher resources & competitions.
Hands-On Science Workshops
Interactive STEM experiences aligned to the NSW syllabus.
